Greater Horn of Africa Braces for Potential Heavy Rainfall and Flood Risks

Meteorologists and climate experts from across the Greater Horn of Africa have issued a new seasonal outlook warning of an increased likelihood of wetter-than-normal conditions for the final quarter of 2026. The forecast, released following the 74th Greater Horn of Africa Climate Outlook Forum in Kigali, Rwanda, suggests that the October to December period could see significant rainfall across the region. This season is historically vital, as it provides up to 70 percent of the total annual rainfall for parts of Ethiopia, Kenya, and Somalia. The outlook was developed by the IGAD Climate Prediction and Applications Centre in collaboration with national meteorological services and the World Meteorological Organisation. Experts analyzed current tropical sea surface temperature patterns and historical climate data to reach their conclusions. They noted that the ongoing influence of the El Niño-Southern Oscillation is a primary driver behind the expected shift in precipitation patterns. Regional forecasts indicate a high probability of seasonal rainfall exceeding 400 millimeters in several specific areas. These regions include central and southern Somalia, central Kenya, the Lake Victoria Basin, Burundi, western Rwanda, and western Tanzania. While this moisture is expected to improve pasture and water availability for livestock, it also brings substantial risks to the population. Disaster management officials are particularly concerned about the potential for flash flooding and severe weather events. Excessive rainfall can lead to the destruction of crops, damage to critical infrastructure, and the displacement of communities. The Food Security and Nutrition Working Group has warned that such conditions could also disrupt access to essential health and nutrition services. Public health experts are monitoring the situation closely due to the elevated risk of water-borne and vector-borne disease outbreaks. Standing water and flooded areas often create breeding grounds for mosquitoes and other disease vectors. Authorities are urging local governments to strengthen their preparedness and response strategies to mitigate these potential health impacts. Representatives from ten countries, including Djibouti, South Sudan, Sudan, and Uganda, attended the forum to coordinate their regional response. The collaborative effort aims to ensure that climate information is actionable and supports resilience-building across the diverse landscapes of East Africa. National agencies are expected to issue more detailed, country-specific forecasts in the coming weeks. While the current forecast serves as the primary reference for decision-making, experts emphasize that each climate event remains unique. The variability of rainfall in Eastern Africa is complex and influenced by multiple large-scale mechanisms, including the Indian Ocean Dipole. Scientists continue to monitor these factors to provide the most accurate updates possible. This seasonal outlook follows a period of significant climate variability across the continent, which saw both intense wet spells and severe drought conditions in recent years. The 2025 state of the climate report highlighted that extreme weather events affected millions of people across Africa, underscoring the importance of early warning systems. Governments are now working to integrate these new findings into their agricultural and disaster management planning. Agricultural sectors are preparing for the potential benefits and challenges of the predicted rainfall. Improved soil moisture could support crop development in some areas, provided that the intensity of the rain does not lead to widespread erosion or waterlogging. Farmers are being advised to monitor local advisories to manage their planting cycles effectively. As the region moves toward the final months of the year, the focus remains on balancing the benefits of increased water availability with the dangers of extreme weather. The integration of regional climate data into local policy is seen as a critical step in protecting vulnerable populations. Ongoing monitoring will continue to guide humanitarian and development efforts throughout the remainder of 2026.